Machine for coiling metal strips.



H APPLICATION FILED AUG. 22, 1912.

wllinesses l). L. SUMMEY.

MACHINE FOR GOILING METAL STRIPS.

I APPLICATION FILED AUG. 22, 1912. 1,079,071., Patented Nov. 18,1913.

5 SHEETS-*SHEEfI 2.

witnesses 0. 9C Wax D. L. SUMMEY.

MAGHINE FOR GOILING METAL STRIPS. APPLICATION FILED AUG. 22, 1912.

'6 SHEETS-SHEET 3.

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wzinesses Inve tor er ih/WuM P W E Attorney Patented Nov. 18, 1913.

witnesses D.'L. SUMMEY.

MACHINE FOE OOILING METAL STRIPS.

APPLIGATION FILED AUG.22, 1912.

Patented Nov. 18, 1913.

5 SHEETS-SHEBT 4.

ffwentok %ney D. L. SUMMEY.

MACHINE FOR GOILING METAL STRIPS.

APPLIGATION FILED AUG. 22, 1912.

fnven r Attorney 5 T E E H 4 S T E E H S 5 3 1 9 1 0o 11 0 N d Du t n w a P witne asea 6. A. W UM f 7ZMM ance positions.

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DAVID LONG SUMMEY, DE WATERBUBY, CONNECTICUT, ASSIGNOR TO CHASE ROLLING MILL 00., OF WATERBUEY, CONNECTICUT, A CORPORATION.

MACHINE FOR COILING METAL STRIPS.

Specification of Letters Patent.

Patented Nov. 13, i 913.

Application filed August 22, 1912. Serial No. 716,452.

and State of Connecticut, have invented a new and useful Improvement in Machines for Coiling Metal Strips; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact de'- scription of the same, and which said drawings constitute part of this application, and represent, in

Figure 1 a plan view of a machine for coiling metal strips, constructed in accord ance with my invention. Fig. 2 a view thereof in side elevation, with the housings of the strip-rolling mill partly broken away. Fig. 8 a view of the machine in end elevation looking at its outer end, with its coiling-drum expanded, and a strip entered into its strip-receiving space, and with its stripdelivery arms and plates shown in their strip-delivery positions by full lines, and in their coil-clearance positions by broken lines.

Fig. & a view in vertical transverse section on the line a-b of Fig. 1, showing the strip being wound upon the drum, with the stripdelivery arms and plates in their coil-clcar- Fig. 5 a view in vertical transverse section of the expansible coiling drum with its members in their expanded positions, at which time its closure-members fill in the spaces between the ends of its body-members. Fig. 6 a corresponding View showing the drum as contracted, with its passway open to receive the end of the strip to be coiled. Fig. 7 a View of the drum in longitudinal section on the line o-(Z of Fig. 5. Fig. 8 a broken view of the drum in longitudinal section on the-line e-f of Fig. 5 and showing one of the closure-members and the sleeve by which the same, as well as the other mo able members of the drum, are operated. Fig. 9 a detached View in vertical longitudinal section of the two-part operating-sleeve. Fig. 10 a view in elevation of the inner end thereof. Fig. 11 a corresponding View of the outer end thereof. Fig. 12 a detached view in transverse section of the shaft or spindle on the line g-h of Fig. 7. Fig. 13 a broken view in transverse section on the line z'-j of Fig. 2.

My invention relates to an. improved stripcoiling machine, the object being to produce a compact, effective, convenient and durable device having a large capacity for work and constructed with particular reference to safety of operation, whereby danger to the operator is wholly eliminated and the capacity of the strip-rolling mill is increased.

With these ends in view, my invention consists in a machine for coiling metal strips, having certain details of construction and combinations of parts as will be hereinafter described and pointed out in theclaims.

In the machine chosen for the illustration of my invention, the metal strip 2 to be coiled, is stripped from the rolls 3, 4, of an ordinary strip-rolling mill by means of an upper and a lower pair of stripping fingers 5 and 6, the outer ends of which are beveled to conform tothe peripheries of the said 'rolls 3 and t with which they are maintained in constant engagement, as will be described later on. The fingers 5 of the upper pair of stripping-fingers are fastened to the lower faces of the outer ends of two horizontally arranged guide-plate carryingarms 7 hav ing a slight rocking movement upon a. horizontal shaft 8 upon which they are mounted,

while the fingers 6 of the lower pair of stripping-fingers are fastened to the upper faces of the outer ends of two corresponding horizontally arranged guide-plate carryingarms 9 having a slight rocking movement upon a horizontal shaft 10 located directly below the shaft 8 aforesaid. The said stripping fingers 5 are maintained in constant engagement with the stripping-roll 3 and automatically adjusted to any changes in the position thereof, by means of two springs 11 fastened at their lower ends to the upper edges of the respective arms 7 and having their upper ends respectively secured to arms 12 fixedupon the shaft 8. The said stripping-fingers 6 are maintained in constant engagement with the periphery of the roll 4 by means of two springs 13 respectively fastened to the arms 9 aforesaid and to fixed arms 1-1 corresponding to the arms 12, and mounted upon the shaft 10. Under this construction, the two springs 11 and the two springs 13 exert a constant effort to maintain the stripping-fingers 5 and ('3 in engagementwith the peripheries of the respective rolls 3 and 4t.

A fiat horizontal plate 15 fastened to the lower faces of the upper arms 7, forms an upper guide for the strip 2, while a corresponding plate 16 fastened to the upper faces of the two arms 9 forms a lower guide for the strip 2 as it emerges from the striprolling mill. The said plates 15 and 16 deliver the end of the strip to corresponding upper and lower strip-delivery plates 17 and 18. The upper plate 17 is fastened to the lower faces of a pair of longitudinally movable and rocking stripdelivery platecarrying arms 19 having their inner ends pivotally connected by studs 20 to vertically arranged levers 21 connected by a cross-arm 22 terminating in a common handle 23. The two levers 21 are connected at their lower ends by a shaft 2st mounted in a bracket 25 secured to a supporting rail 26 of the mill. Similarly the lower plate 18 is fastened to the upper faces of two longitudinally movable strip-delivery plate-carrying arms 27 having their inner ends connected by studs 28 to the respective levers 21 aforesaid. The said plate-carrying arms 19 are formed with longitudinal slots 29 through which the shaft 8 aforesaid passes, whereby the said arms 19 are supported when being horizontally moved back and forth into their strip-delivery and coil-clearance positions to horizontal movement back and fort-h by the said handle 23. The horizontal shafts 8 and 10 before mentioned, are 'mounted one above the other in vertical frame-pieces 31 the ends of which are mounted in brack -ets 32 bolted to the housing 33. Under the construction described, the upper arms 19 and. the lower arms 27 are simultaneously moved longitudinally into their strip-deliv ery and coil-clearance positions in which they are respectively shown by full lines in Figs. 3 and 4, by the operation of the handle '23. It will be observed by comparing these two figures, that in their strip-delivery positions, the upper arms 19 have their outer ends depressed so as to produce the narrow delivery-space 34 between the upper and lower guide-plates 17 and 18 required for the accurate delivery of the end of the strip to a coiling-drum which, as herein shown, has a passway 35, and is of the expansible type. I do not, however, limit my self to the use of an expansible drum, although I prefer to employ an expansible drum since its capacity for contraction facilitates the removal of the coil.

The expansible coiling-drum shown and described herein comprises two corresponding radially movable, nearly semi-cylindrical body-members 36 the edges of which are separated, when the drum is contracted as.

shown in Fig. 6, by a diametric passway 35 produced by the construction and organization of the several movable members of the drum, for the reception into the very body thereof, of the end of the strip preparatory to the coiling operation. The said passway 35forms withln the drum a stripend-receiving space extending clear through the drum for'which it provides two strip; end receiving entrances. If desired, however, the said passway may be blocked between its ends, as indicated by broken lines 35- in Figs. 5 and 6, without interfering with the operation of the machine. The innerfaces of the edges of the said bodymembers 36 are beveled as at 37 to provide pairs of movable closure-members 38 the primary office of which is to close the ends of the passway 35, and so insurea continuous cylindrical surface for the drum at the time it discharges its strip-coiling function. In other words, the coiling surface of the drum is made up of the convex surfaces of its semi-cylindrical body-members 36 and the narrow convex outer surfaces of'its closure-members38 which may also have stripgripping functions as will be described later on. By means of the closure-members 38, I am enabled to construct the coiling. drum so as to have a relatively wide passway or interior strip-end receiving space or slot, a wide entrance way or space or slot for the reception of the strip-end being very desirable in automatically fed strip-coiling machines designed to be run at a very high rate of speed to keep pace with a rapidly operated strip-rolling mill. One pair of the said closure-members 38 is located at one entrance of the said passway 35, and the other pair at the other entrance thereof. In their retracted positions as shown in Fig. 6, the said closure-members 38 leave both entrances of the passway 35 wide open, while in their projected positions as shown in Fig. 5, the said closure-members 38 close the entrances of the passway, and by taking positions between the edges of the said body members 36, complete the circle of the drum and so insure a continuous surface or periphery for the winding of the coil, which, being under high tension when being coiled, partakes of the exact superficial form of the drum, so that unless the drum presentsasmooth, continuous cylindrical surface, the metal strip coiled will be disfigured throughout its length and rendered unfit for use.

For the positive operation in'both direcclearance for the beveled outer edges of two tions of the body-members 36 and closuremembers 38 of the expansible coiling-drum, I employ a non-rotatable sleeve 39 composed of two corresponding halves, and mounted upon the outer end of an intermittently rotated spindle or shaft 40 which is formed with a slot 41 open along its edges, and at its outer end as shown in Figs. 5, 7 and 12, and constitutes a portion of the passway 35 through the drum.- The said shaft 40 is journaled in pedestal bearings 42 and 43 secured to the bracket 25 aforesaid. The said sleeve 39 is formed at its respective ends with circumferential heads 44, 45, the

latter including a collar 36 having threaded openings 47 for the reception of two operating-rods 48, 48, by means of which the sleeve is reciprocated upon the shaft 40; The said outer and inner heads 44 and 45 are formed at opposite points in their peripheries with inclined, dovetail slots 49 receiving inclined dovetail, lugs 50 cast integral with, and extending radially inward from, the inner surfaces of the body-members 36 which are thus connected with the sleeve 39 so as tobe positively moved radially inward and outward thereby as the sleeve is reciprocated upon the shaft or spindle 40. The said body-members 36 of the drum are held against longitudinal movement and limited to radial movement under the endwise thrust and pull ofthe sleeve 39, by means of collars 51 fastened upon the shaft 40 and formed with inwardly projecting flanges 52 co-acting with annular shoulders 53 at the ends of the said body-members 36 as clearly shown in Figs.

endwise thrust and pull of the sleeve 39,

by means of the collars 51 aforesaid.

To prevent the sleeve 39 from rotating upon the shaft 40, its correspondinghalves are formed at their ends with longitudinal coupling-lugs 56 (Figs. 9 and 10) entering longitudinal grooves 57 formed in the shaft 40 as shown in Figs. 5, 6, 7 and 12.

Under the construction just abovedescribed, the. sliding sleeve 39 operates to positively move the body-members 36 and a the closure-members 38 in both directions,

the parts being timed so that the bodymembers will be moved to the extreme limit of their outward excursions before the closure-members are moved to the limit of their outward excursions, the sleeve being entirely relied upon for moving the body and closure-members of the drum into their expanded positions. However, by constructing the parts so that the closure-members do not reach the limit of their out'-:

ward movement until after the body-members have reached the limit of their outward movement, the beveled edges of the body-members form points of purchase for crowding the closure-members inward upon the strip so as to grip and clamp the same.

I do not limit myself to constructing the closure-members so as to actually clamp the end of the strip which may not be necessary for the reason that if the drum has made a turn the end of the strip secures, as I might say, a bight upon the drum and does not need to be held; but I prefer especially when the passway is blocked midway of its length, to construct the closuremembers so that as a matter of additional security in holding the strip, they will be crowded inward upon the same so as to grip it just as they are moving into their final outward positions in which they discharge their primary functions of bridging the spaces between the edges of the body-members so as to provide a perfectly continuous cylindrical coiling surface for the drum when it is fully expanded and at the time of the coiling operation.

For the purpose of providing a smooth path for the strip-end 2 through the passway, double-entrance or interior space 35, the same is lined, as it were, by means of two flexible metal plates 58, shown in Figs. 5 and 6, these plates being secured to the opposite faces of the slot 41 in the-shaft 40 and projecting radially beyond the edges of the said slot 41 to the entrances of the passway 35, whereby the'projecting portions of the plates are left free to be flexed by the movement toward each other of the closure-members 38 as shown in Fig. 5. On the other hand, when the drum is contracted and the passway 35 opened, the projecting portions of the plates 58 return of their own resiliency to their normal positions, as shown in Fig. 6.

As already described, the sleeve 39 is provided for its reciprocation with two rods48 the outer ends of which are connected with a sliding collar 59, (Figs. 1 and 2) mounted upon the shaft 40, and formed with the usual circumferential groove containing a ring 60 furnished at opposite points on its periphery with studs 61 entering slots 62 in the upper ends of the respective arms of a yoke-lever 63 pivotally hung in a bracket 64 bolted 'to the pedestal-bearing 43, the lower end of the said yoke-lever 63 being levers 21, the said valve 71 being connected p ing means,

said shaft 40 with a hand-wheel 84, and the with the cylinder in the ordinary way by means of an inlet pipe 72, air-supply pipe 73, and an inlet. pipe 74, whereby by the manipulation of the valve 71 the cylinder 69 is brought into play for expanding or contracting the coiling-drum.

For rotating the shaft 40, and hence the coiling-drum, I employ a continuously rotated belt-driven pulley 7 5 loosely mounted upon the shaft 40 and formed upon its inner. face with one member 7 60f an ordinary jawclutch the complementary member 77 of which isformed upon a collar 7 8 mounted to slide upon the shaft 40 and formed in the usual manner with an annular groove (not shown) for the reception of a ring 79 having oppooppositely projecting studs 80 entering slots 81 in the upper ends of the respective arms of a yoke-lever 82 suspended in a bracket 83 bolted to the side of the pedestal-bearing 42, the lower end of the lever 82 being pivotally connected to the connecting-rod 44, whereby when the said rod moves in the direction required for expanding the coiling-drum, the collar 78 is moved for the co-action of the clutch-members 77 and 76, thus coupling the pulley 75 with the shaft 40, which is then rotated to coil the strip.

The parts just described are timed in their operation so that the starting of the shaft 40 in rotation is substantially simultaneous with the expansion of the coiling-drum and the closing of the passway 35 thereof. Conversely thereverse operation of the twoway valve 71 brings the cylinder 59 into play for simultaneously contracting the coiling-drum and opening its said passway 35 and stopping the shaft 40.

In order to provide for the accurate registration of one entrance or the other of the passway 35 of the coiling-drum with the narrow delivery-space 34 formed by the plates 17 and 18 of the guiding and deliveras shown in Fig. 3, I provide the collar 78 (Figs. 2 and 13) with two oppositely arranged stop-notches 85 either one of which is arranged to co-act with a springactuated bolt 86 mounted in the bracket 83.

The said notches 85 are arranged with reference to the passway 35, so that as soon'as the shaft 40 has been manually turned in either direction by the hand-wheel 84 sufficiently to bring either entrance of the passway 35 into registration with the saiddelivery space 34 of the guiding and delivering means, the bolt 86 will enter one or the other of the two stop-notches 85 and stop the coil-v Having described my improved machine for coiling strips, I will briefly set forth the operation thereof. Let it be assumed, in the first place, that the hand-wheel 84 has been manually turned to register either entrance of the passway 35 of the coiling-drum with the delivery-space 34, the said drum being at this time contracted as shown in Fig. (3 with its passway 35 open at both entrances and locked against rotation by the bolt 86. At the same'time the handle 23 will. be thrown into the position in which it is shown by full lines in Fig. 3, whereby the strip-- delivery plate-carrying arms 19 of the strip delivery means are advanced into their stripdelivery positions, as shown in Fig. 3, which represents the extreme ends of the said arms nearly in contact with the coiling-drum, and the strip-delivery space 34 contracted and in line with the passway 35 of the drum. With the machine thus adjusted, the end of a strip of metal is introduced into the striprolling mill, and as it emerges from between the rolls 3 and 4 thereof, the stripping-fingers 5 and 6 strip it from contact with the roll with which it is engaged as the case maybe, and direct it between the guiding plates 15 and 16 by means of which it-iS guided and delivered between the delivering plates 17 and 18 which together form the contracted delivery-space 34 from which the end of the strip. enters the passway 35 of the coiling-drum. The operator now operates the two-way valve 71 which immediately brings the power-cylinder 69 into play for moving the rod 44, and hence the operating sleeve 39 as required for expanding the coiling-drum by positively moving the body- 11181711061836 to the limit of their outward movement and for closing the entrances of the passway 35 by projecting the'closureof the drum and providing a continuous surface for the strip to be coiled upon. The

closure-members are timed so as not to finish their movement until after the body-members,

are in their fully expanded positions, whereby the beveled edges of the said body-members become points of purchase for the closure-members in being crowded upon the strip in case a clamping action is deemed desirable. The same movement of the rod .lt starts the shaft 40, and hence the coiling- I Fig. 3 by broken lines, and in Fig. 4 by full lines. As the two arms 19 move outward away from the coiling-drum into their coilclearance posit-ions, they undergo a lifting movement at their outer ends so as to permit the strip 2 to rise, as it were, from the center of the coiling-drum to the periphery thereof. The machine having been started as. de-

scribed the coilin -drum is allowed to rotate until the full length of the striphas been wound upon it, after which the operator reverses the valve 71, which brings the cylin der 69 into play for moving the operatingsleeve 30 as required for positively contracting thecoiling-drum whereby the bodyinembers 38 are made to let go their hold upon the coil for the easy removal thereof and whereby the closure-members are retracted for opening the entrances into the passway 35, or slot or interior space, or whatever it may be called. The operator now slips the coil of metal off the outer end ofthe contracted coiling-drum and re-sets the same by means of the hand-wheel 84:. The operation above described is repeated, and so on.

It will be noted that the operator is not called upon to touch the metal strip from the time its end is introduced into the rolls of the strip-rolling mill until the strip has been coiled upon the drum and the machine and drum brought to a stop, the end of the strip being automatically guided and delivered to the coiling-drum and entered into the passway or slot or interior strip-endreceivingspace thereof.

By locating the means for guiding and delivering the end of the strip at one side of the drum and between the same and the rolls of the strip-rolling mill, the drum is at all times left accessible for observation, as well as for attention and repair, and the removal of the coiled strip from it greatly facilitated over machines in which the strip is guided in being coiled by guiding devices surrounding and inclosing the drum. The specific means employed for guiding and delivering the strip may be widely varied within the purview of my invention as long as they are located between the rolls of the mill and the coiling-drum with which they make but one point of contact as distinguished from encircling the drum in whole or in part. In case the interior space of the drum takes the form of a passway whether the same is left open from end to end or blocked, as suggested,

it may be arranged diametrically, or it may, if preferred, traverse the drum at one side of the center thereof.

I claim 1. In a machine for coiling metal strips, the combination with the rolls of a striprolling mill, of an expansible coiling-drum having a continuous, cylindrical coiling-surface and an interior strip-receiving s ace, means for guiding the' end of the strip rom the said rolls into the said space, means for separating and retiring the said guiding means to permit the strip to be piled in layers upon the drum, and a fluid-operated power-cylinder for positively expanding and contracting the drum.

2. In a machine for coiling metalstrips, the combination with the rolls of a. striprolling mill, of an expansible coiling-drum having a continuous, cylindrical coiling-surface and an interior strip-receiving space,

means for guiding the end of the strip from the said rolls into the said space, means for separating and retiring the said guidin means to permit the strip to be coiled in layers upon the drum, means for expanding and contracting the drum, and independent power means for rotating the drum.

3. In a machine for coiling metal strips, the combination with the rolls of a striprolling mill, of an expansible coiling-drum having an interior strip-receiving space, means for guiding the end of the metal strip from the saidrolls and entering it into the said space, a power cylinder connected with the drum for expanding and contracting the same, and means independent of the said power cylinder for rotating the drum.

4. In a strip-coiling machine, thecombination with the rolls of a strip-rolling mill,

of an expansible drum comprising bodymembers and closure-members constructed and organized so that when the drum is contracted, an interior strip-receiving space will be formed in it for the reception of the end of the strip and so that when the drum is eX panded the said space will be closed, and the said members will form a continuous cylindrical coiling-surface, and means interposed between the saidr'olls and drum for guiding the strip and automatically inserting its end into the said space in the drum when the same is contracted. I

5. In a machine for coiling metal strips, thecombination with the rolls of a striprolling mill, of an expansible coiling-drum having a continuous cylindricalcoiling-surface and an interior stri =re'ceiving space, 1

means for guiding the en of the strip from the said rolls into the said space, a fluid-operated power-cylinder, lever-connection between the said cylinder and the drum for the positive expansion and contraction thereof, and independent means for rotating the drum.

6. In a machine for coiling metal strips, the combination with an expansible coilingdrum having body-members and closuremembers constructed and organized to pr0- vide a continuous, cylindrical coiling-surface and to produce a strip-receiving space within the drum when the same is contracted, of means for guiding the strip from the said rolls into the said space, a power-cylinder, lever-connection between the same and the said bodyand closure-members of the drum for the automatic operation thereof in contracting and expanding the drum, and independent means for rotating the drum.

7. In a strip-coiling machine, the combination with an expansible coiling-drum comprising body-members and closure-members constructed and arranged to form a stripreceiving space within the said drum, of a shaft for the said drum, a sliding sleeve mounted upon the said shaft and connected with the said body and closure-members for the positive operation thereof inboth directions, a fluid-operated power-cylinder and lever connection between the said. cylinder and sleeve for the operation of the latter.

8. In a machine for coiling metal strips,

the combination with an expansible coilingdrum comprising body-members and closure-members constructed and arranged to form a continuous, cylindrical coiling-surface when the drum is expanded and a stripreceiving passway extending through the drum when the same is contracted; of means for guiding the strip from the said rolls and entering it into the said passway at either end thereof, means for positively expanding the drum and closing the said passway after the strip has been entered thereinto, and for contracting the drum preparatory to the removal of thevcoil, and manually operable means for separating and retiring the said guiding means to permit the coil to be piled in layers upon the continuous expanded surface of the drum.

9. A strip-coiling machine having an expansible coiling-drum parts of which are constructed and organized to form a stripreceivlng passway having two entrances for the reception of the end of the strip, the said entrances being closed when the drum is expanded,'for the production of a continuous coiling surface, in combination with uiding means for automatically leading the end of the strip to the drum and entering it into one entrance or the other of its passways, and manually-operated means for re-- tiring the guiding means into a clearance position in which they permit the metal to be piled upon the expanded drum.

10. In a strip-coiling machine, the combination with a drum having body and closure members constructed and organized to form a passway through the drum when the same is contracted, and to form a continuous coiling surface when the drum is expanded, of a revolving shaft for the drum, a sliding sleeve mounted upon the said shaft and connected with the said members for their positive movement in both directions, a power cylinder, and lever connection between the i said cylinder and the said sleeve for the operation of the latter.

11. In a strip-coiling machine, the combination with a drum'having radially movable body-members, and closure-members located within the said body-members and shaped to extend into the spaces between the edges thereof to form a continuous coiling surface for the drum when the same is expanded, and the said members being constructed and organized to form, when the drum is contracted, a strip-receiving space; of a'shaft located in the center of the drum, a sliding sleeve mo-unt'ed upon the said shaft, and.

dovetail connection between the sleeve and the said members for their positive operation in both directions thereby.

12. An expansible coiling-drum for use in a machine for OOiliIlg metal strips, the said drum consisting of body-members and closure-members organized as two units separated by a strip-receiving passway extending radially through the drum and open when the said members are in their contracted positions, and closed, when the said,

members are in their expanded positions, to form a continuous coiling-surface. v

13. In a machine for coiling metal strips, the combination with the rolls of a striprolling mill, of an expansible coiling-drum having a continuous, cylindrical coilingsurface and an interior strip-receiving space, of means located between the said rolls and the periphery of the drum for guiding the strip from the rolls into the said space, means for separating and r tiring the said guiding means to permitthe strip to be piled in layers upon the surface of the drum, means for positively contracting and expanding the drum, and independentmeans for rotating the drum.

14. In a strip-coiling machine, the combination with the rolls of a strip-rolling mill, of an expansible coiling-drum having a continuous, cylindrical coiling-surface and an interior strip receiving space having two entrances which are closed when the drum is expanded and open when the drum is contracted, means located between the said rolls tiring the said guiding means to permit the strip to be wound in layers upon the coilingsurface of the drum.

15. In a strip-coiling machine, the combination with the rolls of a strip-rolling mill, of an expansible coiling-drum having a continuous, cylindrical coiling-emfaee and an interior strip-receiving space, of power connections for expanding and contracting the said drum to close and open the said space, means independent of the said eonnections for rotating the drum, means for gu iiing the strip from the said rolls into the S311 saidguidin means for moving them into their stripelivery and coil-clearance po- DAVID LONG SUMMEY. Witnesses A. H; Fnnme, L. M. COTTER.

space, and a lever connected. with the V 

